TCCA
TEAS CHANGE OF CORRESPONDENCE RECEIVED
04/20/2026
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Official data from USPTO
HYSPEC
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Active USPTO registrationType: WordOffice: United States
Risk and opportunity diagnosis
Executive reading for naming, filing, and monitoring decisions.
USPTO status
Active USPTO registration
Case type
Application and registration
Recorded events
51
Latest update
04/22/2026
Trademark type
Word
Nice classes
9
Filing date
07/13/1995
Registration date
04/21/1998
Expiration date
-
Complete case details
Structured fields from the responsible authority and the official record.
Status date
05/03/2018
Last transaction
04/22/2026
Responsible office
United States Patent and Trademark Office
Status code
800
Official register
Principal Register
Filing basis
Intent to use
Drawing code
1
Owner type
13
Owner location
CALGARY, ALBERTA, CA
Law office
L30
Current location
GENERIC WEB UPDATE
Holders and representatives
Holders
ENERSUL LIMITED PARTNERSHIP
ENERSUL OPERATIONS LIMITED PARTNERSHIP
Procor Sulphur Services Inc.
Representatives
Michael Harris ARNOLD & PORTER KAYE SCHOLER LLP
Technical classification
Nice Classes
Class 9
Vienna Codes
No Vienna codes available.
Goods and services
Class 9
scientific apparatus and equipment for the separation of effluent streamsincluding the recovery of gaseous components from liquid effluent streamsfrom sulphur and sulphur related plants
Publications
History of USPTO decisions and trademark events.
51 publications found
ARAA
ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
04/20/2026
REAP
TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
04/20/2026
TCCA
TEAS CHANGE OF CORRESPONDENCE RECEIVED
03/17/2025
ARAA
ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
03/17/2025
REAP
TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
03/17/2025
CHAN
APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED
03/17/2025
COAR
TEAS CHANGE OF OWNER ADDRESS RECEIVED
03/17/2025
EWAF
TEAS WITHDRAWAL OF ATTORNEY RECEIVED-FIRM RETAINS
12/16/2024
TCCA
TEAS CHANGE OF CORRESPONDENCE RECEIVED
12/16/2024
ECDR
TEAS CHANGE OF DOMESTIC REPRESENTATIVES ADDRESS
12/16/2024
ARAA
ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
12/16/2024
REAP
TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
12/16/2024
CHAN
APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED
09/15/2020
TCCA
TEAS CHANGE OF CORRESPONDENCE RECEIVED
09/15/2020
ECDR
TEAS CHANGE OF DOMESTIC REPRESENTATIVES ADDRESS
09/15/2020
ARAA
ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
09/15/2020
REAP
TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
09/15/2020
COAR
TEAS CHANGE OF OWNER ADDRESS RECEIVED
09/15/2020
TCCA
TEAS CHANGE OF CORRESPONDENCE RECEIVED
11/20/2018
NA89
NOTICE OF ACCEPTANCE OF SEC. 8 & 9 - E-MAILED
05/03/2018
RNL2
REGISTERED AND RENEWED (SECOND RENEWAL - 10 YRS)
05/03/2018
89AG
REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED
05/03/2018
APRE
CASE ASSIGNED TO POST REGISTRATION PARALEGAL
05/03/2018
E89R
TEAS SECTION 8 & 9 RECEIVED
04/24/2018
REM2
COURTESY REMINDER - SEC. 8 (10-YR)/SEC. 9 E-MAILED
04/21/2017
ARAA
ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
02/17/2016
REAP
TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
02/17/2016
TCCA
TEAS CHANGE OF CORRESPONDENCE RECEIVED
05/05/2014
TCCA
TEAS CHANGE OF CORRESPONDENCE RECEIVED
05/01/2014
RNL1
REGISTERED AND RENEWED (FIRST RENEWAL - 10 YRS)
08/23/2008
89AG
REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED
08/23/2008
PLGL
ASSIGNED TO PARALEGAL
05/06/2008
89AF
REGISTERED - COMBINED SECTION 8 (10-YR) & SEC. 9 FILED
04/21/2008
PAPER RECEIVED
04/21/2008
CFIT
CASE FILE IN TICRS
05/08/2007
C15A
REGISTERED - SEC. 8 (6-YR) ACCEPTED & SEC. 15 ACK.
06/10/2004
815F
REGISTERED - SEC. 8 (6-YR) & SEC. 15 FILED
04/21/2004
R.PR
REGISTERED-PRINCIPAL REGISTER
04/21/1998
1.BD
Sec. 1(B) CLAIM DELETED
03/10/1998
IUCN
NOTICE OF ALLOWANCE CANCELLED
02/11/1998
EX1G
SOU EXTENSION 1 GRANTED
08/28/1997
EXT1
SOU EXTENSION 1 FILED
08/11/1997
NOAM
NOA MAILED - SOU REQUIRED FROM APPLICANT
02/11/1997
PUBO
PUBLISHED FOR OPPOSITION
11/19/1996
NPUB
NOTICE OF PUBLICATION
10/18/1996
CNSA
APPROVED FOR PUB - PRINCIPAL REGISTER
09/13/1996
CNEA
EXAMINER'S AMENDMENT MAILED
09/11/1996
CRFA
CORRESPONDENCE RECEIVED IN LAW OFFICE
07/31/1996
CNRT
NON-FINAL ACTION MAILED
01/31/1996
DOCK
ASSIGNED TO EXAMINER
01/24/1996
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